DQRID : D170404.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/13/2013000007/25/20141900Incorrect
more
Subject:
SGP/BRS/C1 - Reprocess: Incorrect calibration factors used
DataStreams:sgpbrsC1.b1, sgpbrs20sC1.a0
Description:
Incorrect calibration factors caused error in irradiance data for down_short_diffuse_ 
hemisp, down_short_hemisp, short_direct_normal.

Diffuse: 
Data file has correct serial number (33238) but wrong calibration factor. 
Wrong diffuse calibration factor is 110.28 when it should be 110.03

Global: 
Data file has the correct serial number (30812F3) but wrong calibration factor. 
Wrong global calibration factor is 128.79 when it should be 128.74

NIP:
Data file has the correct serial number (29851E6) but wrong calibration factor. 
Wrong direct calibration factor is 118.17 when it should be 118.37
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Diffuse
Perform the following calculation to correct the data:
DD= down_short_diffuse_hemisp:

Instrument: SN 33238
Old (incorrect) CF: 110.28  [W/m2\mv]
New (correct) CF: 110.03 [W/m2\mv]
DD (new) [W/m2] = DD (old) [W/m2] * 110.03 [W/m2\mv] / 110.28 [W/m2\mv]

-----------------------------------------------------------------------------------
Global:
Perform the following calculation to correct the data:
DS= down_short_hemisp:

Instrument: SN 30812F3
Old (incorrect) CF:  128.79  [W/m2\mv]
New (correct) CF: 128.74 [W/m2\mv]
DS (new) [W/m2] = DS (old) [W/m2] * 128.74 [W/m2\mv] / 128.79 [W/m2\mv]

-----------------------------------------------------------------------------------
NIP:
Perform the following calculation to correct the data:
NIP= short_direct_normal

Instrument: SN 29851E6
Old (incorrect) CF: 118.17  [W/m2\mv]
New (correct) CF: 118.37 [W/m2\mv]
NIP (new) [W/m2] = NIP (old) [W/m2] * 118.37 [W/m2\mv] / 118.17 [W/m2\mv]
Suggestions: 
Wait for reprocessed data
Measurements:sgpbrs20sC1.a0:
  • inst_global
  • inst_direct_normal
  • inst_diffuse
more
sgpbrsC1.b1:
  • short_direct_normal_min
  • down_short_hemisp_min
  • down_short_hemisp
  • down_short_diffuse_hemisp_min
  • short_direct_normal
  • down_short_diffuse_hemisp
  • short_direct_normal_std
  • short_direct_normal_max
  • down_short_hemisp_max
  • down_short_hemisp_std
  • down_short_diffuse_hemisp_std
  • down_short_diffuse_hemisp_max
more

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